Subject: Returned mail: see transcript for details

From: postmaster <[email-masked]>
Date: Wed, 10 Dec 2025 18:48:15 +0100

The original message was received at Wed, 10 Dec 2025 18:48:02 +0100
from:
<[email-masked]>

   ----- The following addresses had permanent fatal errors -----
<[email-masked]>
    (reason: 550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DB5PEPF00014B94.eurprd02.prod.outlook.com 2025-12-10T17:48:14.994Z 08DE2EA189324C52])

   ----- Transcript of session follows -----
... while talking to skurup.se.:
>>> DATA
<<< 550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DB5PEPF00014B94.eurprd02.prod.outlook.com 2025-12-10T17:48:14.994Z 08DE2EA189324C52]
550 5.4.1 Recipient address rejected: Access denied. For more information see https://aka.ms/EXOSmtpErrors [DB5PEPF00014B94.eurprd02.prod.outlook.com 2025-12-10T17:48:14.994Z 08DE2EA189324C52]
<<< 503 5.5.2 Need rcpt command [DB5PEPF00014B94.eurprd02.prod.outlook.com 2025-12-10T17:48:14.995Z 08DE2EA189324C52]